CN1147377C - Hard-surface alloy wire for build-up welding roller surface - Google Patents
Hard-surface alloy wire for build-up welding roller surfaceInfo
- Publication number
- CN1147377C CN1147377C CNB011129948A CN01112994A CN1147377C CN 1147377 C CN1147377 C CN 1147377C CN B011129948 A CNB011129948 A CN B011129948A CN 01112994 A CN01112994 A CN 01112994A CN 1147377 C CN1147377 C CN 1147377C
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- alloy
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Abstract
The present invention relates to a hard-surface alloy wire for surfacing welding roller surfaces. The present invention is filled with alloy powder in a steel belt of a pipe wire, and alloy pipe wires are manufactured by drawing. The alloy powder is composed of components of the following proportion by weight: 0.30 to 0.70 % of C, 0.55 to 1.00% of Si, 0.85 to 1.50% of Mn, 2.00 to 7.00% of Cr, 1.60 to 3.00% of Mo, 0.40 to 1.50% of V, 0.00-2.00% of Ni, 0.60 to 2.00% of W, less than or equal to 0.025% of P, less than or equal to 0.015% of S, and the balancing quantity is Fe. The alloy pipe wire provided by the present invention is exclusively for surfacing welding roller surfaces. The present invention can ensure that after spare parts in the roller class are surfacing welded and repaired, the roller surfaces can have better shock resistance, abrasion resistance, heat and cold resistance, and fatigue resistance. The roller surfaces can have higher roller surface hardness and high temperature stability.
Description
Technical field:
The present invention relates to a kind of hard facing alloy pipe silk, particularly a kind of hard-surface alloy wire for build-up welding roller surface.
Background technology:
Roller class spare parts such as the hot roll of metallurgical industry and hot rolling roller-way, condition of work is very harsh, not only be subjected to serious impact and abrasive action, but also the cold and hot fatigue effect of the alternation that is subjected to high temperature, water-cooled, so roll surface hardness often can't keep, wear-resistant and cold-resistant thermal fatigue property is relatively poor, not only influences production cost, and directly influences the strip surface quality of products.Built-up welding can obtain the material of one deck specific function on the roll body surface.Disclosed CN1209372A patent of invention prospectus on March 3rd, 1999, name is called " special flux-cored wirecord for repairing continuous-casting roller ", and a kind of alloy tube wire is provided, and by dosing Cr and other alloying elements, has improved the resistance to oxidation corrosive nature of overlay cladding.But C, Mo, W, the V equal size of its control composition are lower, and postwelding temper overlay cladding can not be separated out proeutectoid carbide, so the overlay cladding high temperature hardness is lower, and wearability is relatively poor.
Summary of the invention:
The object of the present invention is to provide a kind of hard-surface alloy wire for build-up welding roller surface, be exclusively used in the built-up welding roll surface, after guaranteeing that the built-up welding of hot roll class spare part is repaired, roll surface has shock-resistant preferably, wear-resistant and cold-resistant thermal fatigue property, and has higher roll surface hardness and high-temperature stability preferably.
For achieving the above object, the present invention adopts following technical scheme:
A kind of hard-surface alloy wire for build-up welding roller surface is characterized in that loading alloyed powder in the pipe silk steel band, and alloy tube wire is made in drawing, by weight percentage, its alloyed powder proportioning components is: CO.30～0.70%, SiO.55～1.00%, Mn0.85～1.50%, Cr2.00～7.00%, Mo1.60～3.00%, V0.40～1.50%, Ni0.00～2.00%, W0.60～2.00%, P≤0.025%, S≤0.015%, surplus are Fe.
Alloyed powder is selected alloy powders such as Mn-Fe, Si-Fe, Cr-Fe, Mo-Fe, Ni-Fe, V-Fe or Mn, Si, Cr, Mo, the bronze ends of isozygotying such as Ni, V for use.
The pipe silk that diameter is φ 3.2～4mm is made in the alloy tube wire drawing.
The present invention compared with prior art, have following conspicuous substantive outstanding feature and remarkable advantage: the roll surface alloy for surfacing pipe silk of the present invention's design, carbon content is 0.3～0.7% in its alloyed powder composition, has both guaranteed layer hardness and intensity, guarantees the built-up welding performance again.Mo, the W, the alloying elements such as V, Cr that add q.s in the alloyed powder composition guarantee that surfacing layer can separate out equally distributed carbide in drawing process, obtain age hardening effect, and have good red hardness, heat resistance and high-temperature stability.Wherein the content of W is controlled at 0.6～2.0%, and content is crossed the low enough carbide of formation that are difficult for, and red hardness can't guarantee that too high levels will be separated out more WC, easily causes the built-up welding crackle; Add an amount of Mo, V, form the carbide tissue that disperse distributes, and crystal grain thinning, the overlay cladding performance improved; Control lower P, S content, eliminate its damaging effect.Alloy tube wire provided by the invention, roll surface has shock-resistant preferably, wear-resistant and cold-resistant thermal fatigue property after guaranteeing hot roll class spare part built-up welding reparation, roll surface hardness temperature below 500 ℃ greater than 75HSD, the not obvious decline of long-term use, and roll surface hardness is even, has high-temperature stability preferably.Under the big working condition, overlay cladding formability, good fluidity, weld defects such as overlay cladding flawless.
The specific embodiment:
Embodiment 1: choose the alloy powder of elements such as Mn, Si, Cr, Mo, V respectively, its proportioning components sees Table 1.Make the flux cored wire that diameter is φ 4mm through the curled hair drawing.This pipe silk is applied to the built-up welding of hot rolling cradle roll, and overlay cladding thickness surpasses 7mm.Whole weld deposit process carries out continuously, does not all find weld defects such as crackle in each layer weld deposit process.After post weld heat treatment and machined, roll surface hardness is greater than 82 ± 3HSD, and 3 months roll surface hardness of working under 400 ℃ of situations of roll surface temperature is 75 ± 3HSD, and the end obviously descends.
Table 1 alloyed powder composition
Embodiment 2: choose the alloy powder of elements such as Mn, Si, Cr, Mo, V respectively, its proportioning components sees Table 2, makes the flux cored wire that diameter is φ 4mm.This pipe silk is applied to the built-up welding of hot rolling cradle roll, does not all find weld defects such as crackle in each layer weld deposit process, and after post weld heat treatment and machined, roll surface hardness is greater than 82 ± 3HSD.
Table 2 alloyed powder composition
Claims (3)
1. a hard-surface alloy wire for build-up welding roller surface is characterized in that loading alloyed powder in the pipe silk steel band, and alloy tube wire is made in drawing, and by weight percentage, its alloyed powder proportioning components is:
C：0.30～0.70％，
Si：0.55～1.00％，
Mn：0.85～1.50％，
Cr：2.00～7.00％，
Mo：1.60～3.00％，
V：0.40～1.50％，
Ni：0.00～2.00％，
W：0.60～2.00％，
P≤0.025％，
S≤0.015％，
Surplus is Fe.
2. hard-surface alloy wire for build-up welding roller surface according to claim 1 is characterized in that alloyed powder selects Mn-Fe, Si-Fe, Cr-Fe, Mo-Fe, Ni-Fe, V-Fe alloy powder or Mn, Si, Cr, Mo, Ni, the V bronze end of isozygotying for use.
3. hard-surface alloy wire for build-up welding roller surface according to claim 1 is characterized in that the alloy tube wire drawing makes the pipe silk that diameter is φ 3.2～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011129948A CN1147377C (en) | 2001-05-28 | 2001-05-28 | Hard-surface alloy wire for build-up welding roller surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011129948A CN1147377C (en) | 2001-05-28 | 2001-05-28 | Hard-surface alloy wire for build-up welding roller surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1316311A CN1316311A (en) | 2001-10-10 |
| CN1147377C true CN1147377C (en) | 2004-04-28 |
Family
ID=4659739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011129948A Expired - Fee Related CN1147377C (en) | 2001-05-28 | 2001-05-28 | Hard-surface alloy wire for build-up welding roller surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1147377C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392136C (en) * | 2005-04-29 | 2008-06-04 | 宝山钢铁股份有限公司 | Surface non-adhered steel material of auxiliary roller of winder |
| CN101412158B (en) * | 2008-12-01 | 2011-06-08 | 攀枝花钢城集团有限公司 | Flux-cored wire for producing hot rolling coiler wrapper roller by overlaying welding and overlaying welding method |
| CN102528324B (en) * | 2012-01-18 | 2014-04-09 | 上海金刚冶金材料有限公司 | Method for preparing alloy powder for manufacturing tubular welding wire |
| CN102528323B (en) * | 2012-01-18 | 2014-05-14 | 上海金刚冶金材料有限公司 | Alloy pipe wire produced by prefabricated alloy powder for overlaying welding of support roller and manufacture method of alloy pipe wire |
| CN103212920A (en) * | 2013-03-30 | 2013-07-24 | 首钢总公司 | Welding wire suitable for big hot-rolling back-up roll submerged arc overlaying welding |
| CN103418923B (en) * | 2013-08-30 | 2015-06-17 | 北京工业大学 | Overlaying repair method for worn roller |
| CN105382378B (en) * | 2015-10-27 | 2018-05-25 | 江苏锦航机械制造有限公司 | Overlaying method after large-scale roll shaft abrasion |
| CN110714163B (en) * | 2019-11-05 | 2022-01-28 | 僖昴晰(上海)新材料有限公司 | High-hardness steel alloy welding material |
| CN110757027B (en) * | 2019-11-05 | 2021-08-17 | 上海欣冈贸易有限公司 | High-hardness chromium-molybdenum alloy welding material |
| CN112872651B (en) * | 2021-01-26 | 2022-08-02 | 华能国际电力股份有限公司 | Flux core, preparation method of flux core, flux-cored wire and welding method |
-
2001
- 2001-05-28 CN CNB011129948A patent/CN1147377C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1316311A (en) | 2001-10-10 |
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Granted publication date: 20040428 Termination date: 20160528 |